<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style type="text/css">
    *{margin: 0; padding:0}
    ul{list-style: none;}
    html,body{height:100%;}
    .wrap{
      width: 100%;height:100%;
      overflow: hidden;
      position: relative;
    }
    .wrap>img{
      position: fixed;
      left: 0;top:0;
      width:100%;height:100%;
    }
    .wrap ul{
      position:absolute;
      bottom:20px;
      left:0;
      width:100%;
      text-align: center;
      z-index: 1111;
    }
    .wrap ul li{
      display: inline-block;
      width:100px;height:100px;
      border:10px solid rgba(255,255,255,0.5);
      margin:0 10px;
      border-radius:50%;
      overflow:hidden;
    }
    .wrap ul li img{
      width:100%;height:100%;
    }
    .wrap :target{
      z-index:10;
    }
    #bg1:target{
      animation:bg1 1s 1;
    }
    @keyframes bg1{
      0%{
        transform:translate(-300px);
      }
      100%{
        transform:translate(0px);
      }
    }
    #bg2:target{
      animation:bg2 1s 1;
    }
    @keyframes bg2 {
      0%{
        transform:translate(0,-500px);
      }
      100%{
        transform:translate(0px);
      }
    }
    #bg3:target{
      animation: bg3 1s 1;
    }
    @keyframes bg3{
      0%{
        transform:scale(0);
      }
      100%{
        transform:scale(1);
      }
    }
    #bg4:target{
      animation:bg4 1s 1;
    }
    @keyframes bg4 {
      0%{
        transform: scale(2);
      }
      100%{
        transform:scale(1);
      }
    }
    #bg5:target{
      animation:bg5 1s 1;
    }
    @keyframes bg5 {
      0%{
        transform: scale(0) rotate(0deg);
      }
      100%{
        transform:scale(1) rotate(360deg);
      }
    }
  </style>
</head>
<body>
  <div class="wrap">
    <img src="less/images/t1.jpg" alt="" id="bg1">
    <img src="less/images/t2.jpg" alt="" id="bg2">
    <img src="less/images/t3.jpg" alt="" id="bg3">
    <img src="less/images/t4.jpg" alt="" id="bg4">
    <img src="less/images/t5.jpg" alt="" id="bg5">
    <ul>
      <li><a href="#bg1"><img src="less/images/t1.jpg" alt=""></a></li>
      <li><a href="#bg2"><img src="less/images/t2.jpg" alt=""></a></li>
      <li><a href="#bg3"><img src="less/images/t3.jpg" alt=""></a></li>
      <li><a href="#bg4"><img src="less/images/t4.jpg" alt=""></a></li>
      <li><a href="#bg5"><img src="less/images/t5.jpg" alt=""></a></li>
    </ul>
  </div>
</body>
</html>